|Publication number||US7025735 B2|
|Application number||US 09/861,765|
|Publication date||Apr 11, 2006|
|Filing date||May 21, 2001|
|Priority date||Nov 20, 2000|
|Also published as||DE20019711U1, EP1208802A1, US20020062093|
|Publication number||09861765, 861765, US 7025735 B2, US 7025735B2, US-B2-7025735, US7025735 B2, US7025735B2|
|Inventors||Holger Soring, Jorg Soring|
|Original Assignee||Soring Gmbh Medizintechnik|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Referenced by (25), Classifications (22), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention concerns an ultrasonic apparatus for the treatment of septic wounds, for example of so-called ulcerated legs or other, in particular bacterially infected wounds, which comprises a hand piece connected to an ultrasonic generator and a sonotrode attached to the hand piece.
2. Brief Description of the Background of the Invention Including Prior Art
Methods are known for a treatment of septic wounds. However, these methods are not only very painful for the patient, but in addition, very time-consuming and therefore cost intensive. A healing success is not guaranteed in connection with these conventional methods of treatment. Also a transplantation of skin parts from other locations of the body is further required in particular serious cases.
1. Purposes of the Invention
It is an object of the present invention to furnish an ultrasonic apparatus for the treatment of septic wounds, wherein the ultrasonic apparatus provides for a cost favorable method of treatment and where this method of treatment is less painful for the patient.
These and other objects and advantages of the present invention will become evident from the description which follows.
2. Brief Description of the Invention
The present invention provides a particular structure of a sonotrode of an ultrasonic apparatus. This ultrasonic treatment head or sonotrode resolves the recited problem existing and now a channel is furnished for a feeding of rock salt solution and possibly of medical healing agents such as heparin to the surface to be treated, wherein the sonotrode head can form different shapes depending on the method and kind of treatment.
In order to optimize the treatment method, the sonotrode head and the treatment face of the sonotrode have been formed in very different forms adapted to the different body forms and wound forms. The bactericidal, cleaning and massaging effect of the ultrasound are employed in the application of this so-called ultrasonic method.
The direct contact of the treatment face of the outer sonic treatment head with the pain sensitive wound regions is avoided by the employment of liquid aerosols. The microcirculation is stimulated by the application of the ultrasound, that is the infected cells are destroyed by the massaging action of the ultrasound and thus the surface of the wound is cleaned and the wound heals in a short time upon the regular application of the treatment with ultrasound.
In addition to the rock salt solution also medical healing agents such as heparin, antibiotics and the like can be applied through the channel furnished within the sonotrode, which is particularly recommended in cases of difficult accessible areas of infection. Such an ultrasonic treatment is in particular helpful in such cases, where no improvement could be achieved by injections into the area of the wound. The employment of liquids is additionally associated with the advantage that thereby the heat generated during the treatment is dissipated from the sonotrode head.
The sonotrodes are made of a wear resistant and autoclave resistant material.
As was mentioned above, the sonotrode heads or ultrasonic treatment heads of the subject of the present invention are formed very differently. The shape of the sonotrode head and of the treatment surface depend strongly on the position and shape of the wound, in order to assure an optimum employment of the ultrasonic energy. The subject of the present invention is to be explained in more detail by way of the drawings of the various embodiments.
The novel features, which are considered as characteristic for the invention are set forth in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments, when read in connection with the accompanying drawing.
In the accompanying drawing, in which are shown several of the various possible embodiments of the present invention:
In accordance with the present invention there is furnished an ultrasonic apparatus illustrated in
The hand piece (1) is equipped with a sonotrode receptacle (6), wherein the sonotrode receptacle exhibits a thread for screwing in of the sonotrode (7, 7′, 7″, 7′″). The respective sonotrode (7, 7′, 7″, 7′″) is furnished with an attachment thread (11, 11′, 11″, 11′″) corresponding to the thread of the hand piece. The liquid to be fed in to the treatment face (9, 9′, 9″, 9′″) is led through the channel (10, 10′, 10″, 10′″).
The sonotrode receptacle (6) can be disposed such that a sonotrode (7, 7′, 7″, 7′″) attached to the sonotrode receptacle (6) would exhibit an angle between a longitudinal axis of the sonotrode (7, 7′, 7″, 7′″) and an axis of the handle region (2). The angle between a longitudinal axis of the sonotrode (7, 7′, 7″, 7′″) and an axis of the handle region (2) can be from about 5 to 25 degrees and is preferably from about 10 to 15 degrees. The total length of the handle region (2) can be from about one to two times the length of the sonotrode (7, 7′, 7″, 7′″) and is preferably from about 1.1 to 1.4 times the length of the sonotrode (7, 7′, 7″, 7′″).
The handle region (2) can have its axial direction aligned substantially in parallel to the axial direction of the supply tube (3). The diameter of the handle region (2) can be from about 3 to 5 times the outer diameter of the supply tube (3). The supply tube (3) can be disposed on a side opposite to the side of the sonotrode (7, 7′, 7″, 7′″) relative to the axis of the handle region (2). A connection means can be provided at the handle region near the position of the sonotrode receptacle (6) for connecting the supply tube (3) on a side opposite to the side of the sonotrode (7, 7′, 7″, 7′″) relative to the axis of the handle region (2). The connection means can be associated with a bore hole in the handle region (2) connecting the connection means to the feed channel (5) disposed in a middle of the sonotrode receptacle (6). The diameter of the sonotrode receptacle (6) can be from about two to four times the diameter of the channel (5).
The sonotrodes (7, 7′, 7″, 7′″) have a sonotrode channel (10) extending in the longitudinal direction of the sonotrodes (7, 7′, 7″, 7′″). The diameter of the channel (5) has a diameter from about 0.5 to 4 times the diameter of the sonotrode channel (10) and are preferably of substantially the same diameter.
The ends of the sonotrodes (7, 7′, 7″, 7 ′″) on the treatment side can be furnished with very different sonotrode heads (8, 8′, 8″, 8′″). For example,
The sonotrode (7″) is equipped with a dish shaped sonotrode head (8″) as shown in
The treatment liquid is fed to the treatment surface through the channel (10″). This treatment face (9″) can be formed of a concave shape. The atomization power of the liquids can be further increased by such a shape of a treatment face. A dissipation of the heat generated by the ultrasound is performed simultaneously with the liquid atomization within the applicator and at the radiating border faces.
The sonotrode (7′″) illustrated in
In addition, other formed sonotrode head shapes, such as for example spoon shape or hook shape sonotrode heads, are conceivable corresponding to special requirements in addition to the forms of the sonotrode heads illustrated in
For all illustrated and described forms of the sonotrode heads holds that, a dissipation of the heat generated by the ultrasound is performed simultaneously with the liquid atomization within the applicator and at the radiating border faces. Possibly required touch contacts with the wound region can be performed under low-pain based on the liquid fog present and/or based on the liquid film disposed on the surface. The bactericidal effects of the ultrasound operate sterilizing within the zone treated. While the occurrence of a liquid cavitation contributes to the cleaning of tissue zones disposed on the surface, the forced micro-massaging stimulates the microcirculation in the treatment region based on the high alternating sound pressure.
The wound cavitation processes feature a highly efficient, deep penetrating, and bactericidal effect when subjected to ultrasound assisted wound treatment in addition to mechanical rinsing effects. A special wound treatment solution according to Schikorski can be applied for this purpose. This solution is a modified local tumescence anaesthetic to which heparin has been added. Cavitations, which are defined as micro gas bubbles imploding cyclically, cause destruction of bacteria, viruses and fungi. The cavitation effects reach deeper into the wound than pure rinsing effects due to ultrasound pressure. Infected chronic wounds are characterized by an acidic wound environment that causes pain. The traits of aseptic wounds change as the bacteria remnants are broken down and the wound environment turns neutral, starting to become permanently free of pain. The neutral wound base tends to heal more quickly.
The ultrasound treatment pulse causes the wound treatment solution to penetrate deeply into the fissures of the tissue. Fibrin deposits and bacteria growth are flushed out. The central liquid supply through the sonotrode probe tip shaft has been developed for tasks where direct application to a specific area is required. The wound treatment solution also contains local anaesthetics to immediately relieve the pain. Thrombosis of the granulation capillaries is suppressed by heparinization. This also enhances the formation of new capillaries and thereby speeds up the wound healing process.
The ultrasound assisted wound treatment is associated with a number of advantages. An anaesthetising wound treatment solution contains heparin. The ultrasonic wound debridement is non-lesional. Bacteria grown and sealing fibrin layers are flushed out. The bacterial effects are highly efficient. The acidic wound environment is neutralized. An enhanced granulation is created by heparinization of the wound. Acute and long term pain are alleviated.
The frequency range of the ultrasonic sound employed can be from 20 to 80 kilo hertz.
The ultrasound assisted wound treatment provides an active treatment of chronic wounds instead of a passive care. The improvement of the wound and the alleviation of the pain are immediate upon application of the ultrasound assisted wound treatment. The wound conditioning and healing occur within a few weeks. The apparatus comprises a small mobile unit allows outpatient treatment as well as therapy in a hospital. The technology is fault tolerant and can be performed by assisting staff. The daily treatment involves extremely short times of for example from about 2 to 5 minutes depending on the size of the wound. The overall costs are maintained low by providing a single purpose apparatus.
It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of ultrasonic system configurations and wound treatment procedures differing from the types described above.
While the invention has been illustrated and described as embodied in the context of an ultrasonic apparatus for the treatment of septic wounds, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims.
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|U.S. Classification||601/2, 310/340, 310/311, 600/439, 310/334, 600/459, 601/4, 601/3, 604/22, 310/322|
|International Classification||A61B17/32, A61H1/00, A61N7/00, A61B17/22, A61M1/00|
|Cooperative Classification||A61B2017/320072, A61B2217/005, A61N7/00, A61B2217/007, A61B17/22004|
|European Classification||A61B17/22B, A61N7/00|
|May 21, 2001||AS||Assignment|
Owner name: SORING GMBH MEDIZINTECHNIK, GERMANY
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SORING, HOLGER;SORING, JORG;REEL/FRAME:011834/0766
Effective date: 20010521
|Sep 11, 2009||FPAY||Fee payment|
Year of fee payment: 4
|Aug 22, 2013||FPAY||Fee payment|
Year of fee payment: 8